News tagged with index

More than two weeks of heavy pollution led Iranian officials to ban all outdoor sport and impose new traffic restrictions Wednesday as persistent cold weather exacerbated Tehran's air quality problems.

A team of scientists from the Moscow Institute of Physics and Technology (MIPT) and the Landau Institute for Theoretical Physics at the Russian Academy of Sciences has proposed a two-dimensional metamaterial composed of silver ...

Air pollution forced Bosnian authorities to shut schools in the capital Sarajevo on Thursday, while smog levels also spiked in other parts of the Balkan country due to a lack of rainfall, local officials said.

More Chinese cities are issuing their first red alerts for pollution in response to forecasts of heavy smog, after the capital, Beijing, issued two this month following criticism for not releasing them earlier.

A team of physicists from ITMO University, Ioffe Physical-Technical Institute and Australian National University have researched the phenomenon of phase transition between photonic crystals and metamaterials - two types of ...

Schools closed and rush-hour roads were much quieter than normal as Beijing invoked its first-ever red alert for smog Tuesday, closing many factories and imposing restrictions to keep half the city's vehicles off the roads.

A study into the way nanoparticles scatter light could lead to simpler and smaller optical nanoantennas with improved directivity and efficiency—crucial components for the next generation of advanced photonic devices.